A secretive Space Force ship returned to Earth after spending over a year in orbit conducting mysterious experiments.

In the past three years, astronomers have discovered a mysterious new type of radio source. We call these long-period ...

A new discovery using the James Webb Telescope has implied we may live in a black hole. The telescope, launched by NASA three ...

The team tracked the signal back to a strange binary system containing a dead star or " white dwarf " and a red dwarf stellar ...

Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

The European Space Agency’s Euclid space telescope, built to capture a 3D map of the universe, just released its first big ...

The United States Space Force’s secretive X-37B space plane touched down to earth on Friday after spending 434 days in orbit ...

A space probe flying past Mars captured images of the red planet's small, mysterious moon. While on a flyby of Mars, Hera was able to use three of its imaging instruments to capture images of ...

Scientists have captured a special kind of radio signal from a galaxy that’s nearly 9 billion light-years away from the Earth ...